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default value is 400 ms.)
Precautions when setting the error detection time for the transmission assurance relay
This should be specified such that the value is at least twice that of the largest
transmission cycle time of all the PLCs that are linked.
If a short value has been specified, there is a possibility that the transmission
assurance relay will malfunction.
The setting should not be changed, even if the detection time for the
transmission assurance relay is longer than the result. (The default value is
6400ms.)
Error flags
No.
IEC address
R9007
%MX0.900.7
R9008
%MX0.900.8
Below is an example of a ladder diagram (LD) body for the instruction. Because FP addresses and
Example
strings are entered directly instead of using variables, no POU header is required.
Body
When R9014 turns on when a PLC link is being used, the link entry wait time and the error
detection times for transmission assurance relay are set as follows:
Link entry wait time: 100ms
Error detection time for transmission assurance relay: 100ms.
LD
The values entered at s* will be right aligned automatically by the compiler.
Change
high-speed
counter
operation
mode
This changes the operation mode of the high-speed counter based on the contents specified by the
character constant.
Set
If
any character other than a keyword is
specified
no comma is between the first and second
permanently
keywords
for an instant
small letters of the alphabet are used to
specify the keyword
the specified value is outside the specified
range
System register instructions
989
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